Which of the following contributes maximum as main source of sulphur in the blast furnace charge?
Sinter
Coke
Iron ore
Limestone
- __________ has the highest melting point out of the following.
- __________ is used as a material of construction for the blade of power saw.
- Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while…
- In connection with corrosion of metals, passivation is the process that
- Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is…
- Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal
- Main constituent of bone ash is
- While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen…
- Methyl orange indicator turns
- Hot & cold working of material causes its __________ deformation.
- Faraday's law of electrolysis is related to the
- The heat released by cooling one mole of copper from 400 K to room temperature (300 K) is (assume :…
- The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation…
- Filler material used in welding should have __________ as compared to the parent metal to be welded.
- Fibrous fracture is normally encountered in the __________ materials.
- Midrex process of sponge iron production uses reformed natural gas as the reducing agent, which uses…
- Difference at any instant between the value of the controlled variable and the set point is called the
- Brittleness induced due to the presence of sulphur in steel can be reduced by adding
- A solution which resists change in its pH value on addition of acid/alkali is called the __________…
- Encyclopaedia of Chemical Technology has been
- In condensers used in thermal power plants, steam is normally used in shell side and cooling water on…
- Air-petrol ratio for maximum power generation in spark ignition engine is about
- Pick out the wrong statement.
- Lead is poured into the joint between two __________ pipes.
- Steam condenser tubes are made of admiralty brass, in which percentage of zinc & copper are __________…
- The starting of a car takes time in winter, because the
- Thermit welding uses the following energy source.
- Sudden fall of atmospheric pressure by a large amount is an indication of the
- Which of the following has the least value of ultimate tensile strength (UTS)?
- Function of gear box is to